A 1m span plank wing which I named Joker 


Dimensions and details :-
Span = 1000 mm
Root Cord = 265 mm
Tip cord = 175 mm
Sweep = -25 mm (slight forward sweep)
Wing area = 220000 mm^  or 22 dm^
Airfoil = Phoenix mod (85% thickness)
Elevon = 25 mm cord Full span elevons
Vertical tail = 136 sq cm

Electronics
Motor = 2206 200KV
Prop = 7x4
Bty = 2S 1000 mah

CG - 30 mm from the LE at root cord  / 55 mm from LE at the wing tips...

AUW = 310g,  Wing area = 220000 sq mm, Wing Loading - 4.65 oz/sq ft, Wing cubic loading - 3

The wing is hotwired from EPS (Thermocole). It has a built-up 10mm CF tow spar  and skinned with 32 gsm fiberglass at 45 degree bias. the wing tips are EPP . The fuselage is only in the front portion to house the ESC, RX, Motor and battery.. The vertical tail is stuck on a 3 mm CF rod and glued to the wing TE... I had put the silver strip on one wing thinking it will help in visibility.. it does not help much.
Need to be very careful to get the correct CG, even a couple of mm difference changes the characteristics drastically. I have put 40% expo in elevator.. Once trimmed she thermals well without much inputs without much inputs.. and turns are very tight without loosing height

Here is a a flight video

are you selling ?

No.. not yet 🙂

Beautiful model.

Where you find 32 GSM fiberglass ?

From banggood.. during good old times.

Last Saturday had beautiful thermal flight..a 22.6 mins total flight time with 1.2 th% (Opentx throttle percentage)..

here is another video ..  thermal soaring   

Lovely